| 摘要 |
PROBLEM TO BE SOLVED: To provide a system for notifying a user that a defective product is used through the product when the defective product or the like is generated or detected. SOLUTION: A product is provided with an alarm function corresponding to a serial number. When the product is defective, the user is warned by an alarm of the product in use in an emergency. Concretely, the serial number of the defective product is distributed through wireless radio wave or the Internet. The product receives the signal, and refers to the serial number of the product and the distributed serial number. If the product relates to the distributed serial number, alarm is issued to notify the user thereof. COPYRIGHT: (C)2009,JPO&INPIT |
